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专利名称：Lightweight concrete compositions发明人：Tricia Guevara,Michael T. Williams,Rick
Hughes,Michael R. Kelley,John K.Madish,Kristen Van Buskirk
申请号：US11586120申请日：20061025
公开号：US20070062415A1公开日：20070322
摘要：A lightweight ready-mix concrete composition that contains 8-20 volumepercent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum ofcomponents used does not exceed 100 volume percent. The prepuff particles have anaverage particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to0. g/cc, an aspect ratio of from 1 to 3. The slump value of the composition measuredaccording to ASTM C 143 is from 2 to 8 inches. After the lightweight ready-mix concretecomposition is set for 28 days, it has a compressive strength of at least 1400 psi as testedaccording to ASTM C39.
申请人：Tricia Guevara,Michael T. Williams,Rick Hughes,Michael R. Kelley,John K.Madish,Kristen Van Buskirk
地址：Koppel PA US,Beaver Falls PA US,Beaver PA US,Butler PA US,Negley OHUS,Aliquippa PA US
国籍：US,US,US,US,US,US
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